Lock for telephones.



1. S. STEPHENS.

LOCK FOR TELEPHONES.

APPLICATION mm mNEZ. 191s.

Patented June 6, 1916.

UNITED STATES PATENT OFFICE.

JOHN S. STEPHENS, OF PATERSON, NEW JERSEY.

LOCK FOR TELEPHONES.

Application filed June 2, 1915.

To all whom it may concern Be it known that I, JOHN S. STEPHENS, a citizen of the United States, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Locks for .Tele phones, of which the following is a specification.

This invention contei'nplates an improved telephone lock and has as its primary object to provide a device of this character adapted for attachment to any conventional type of telephone for preventing the unauthorized use thereof.

The invention has as a further object to provide adevice of this character adapted to fit around the stem of a telephone to engage within the slot formed therein upon one side of the receiver hook to prevent the release of the hook upon the removal of the receiver therefrom. And the invention has as a still further object to provide a device of this character adapted to cooperate with the hook in such manner that upward force upon the hook tending to move it to released position will act to urge the device into more secure locking engagement within the slot receiving the hook and consequently prevent the release of the hook. 7

Other and incidental objects will appear as the description proceeds and in the drawings wherein I have illustrated the preferred embodiment of the invention and wherein similar reference characters designate corresponding parts throughout the several views, Figure 1 is an elevation showing my improved device applied to a conventional type of telephone, Fig: 2 is a. fragmentary sectional view particularly showing the manner in which the device is adapted to engage the receiver hook of the telephone, Fig. 3 is a perspective view of the lock detached, and Fig. 4 is a plan view showing the manner in which the device is applied to a telephone.

In carrying out my invention, I employ a lock including a body portion or casing 10 to which is slidably connecteda shackle 11.

The casing 10 and internal mechanism of the lock may be of any conventional type, the said mechanism being adapted to coact with the shackle 11 when the shackle is moved to engage therewith, in the well known manner. In this connection, it may be stated that the shackle 11 may be either 'slidably connected with the body of the lock,

Specification of Letters latent.

Patented J une 6, 1916.

Serial No. 31,711.

as shown in the drawings, or may be.pivotally connected thereto in conventional manner.

As particularly illustrated in 3-and 4 of the drawings, the shackle is substantially U-shaped in general conformation and includes substantially parallel arms 12 which are joined by a curved connecting or bight portion 13, the arms 12 being adapted to be slidably received within the body portion 10 of the lock to cooperate therewith. Formed on the bight portion 13 of the shackle at a point substantially midway its ends, is a laterally and inwardly extending tongue 14 having, upon one side thereof a beveled face 14. As will be noted, the tongue 14 is arranged in a plane with the arms 12 of the shackle and extends toward the body portion 10 of the lock.

Depending from the bight portion 13 of the shackle and extending laterally therefrom at substantially right angles to the tongue 14 are spaced ears 15 which define an intermediate slot 16, arranged in a plane with the tongue 14. The ears 15 as will be observed, are transversely curved or may be provided with inner curved faces conform ing in general outline to the curvature of the bight portion 13 of the shackle.

In order that the function and use of my improved lock might be more clear, I- have, in the drawings, illustrated a conventional type of telephone having a base 17. Rising,

from the base 17 is a cylindrical stem 18 upon the upper extremity of which is arranged a transmitter 19. Projecting laterallyfrom the stem 18 upon one side thereof,

is a spring actuated receiver hook 20 which extends freely through a suitable slot 21 formed in the wall of the stem and is adapted to detachably carry the receiver 22 in the usual manner.

The receiver 22 is normally supported by the hook 20 so that the hook will be de from the body portiondO of the look as "therein iliustrated. 'iho shackle then arranged to i-nahr c ctho main 18 of the tale-- phone. and is, oziitionod ahoio the rm-oiror hook '3') whiini'c flu: t-oiignt H m" the shackle is inwried within tlr: slot 21 asmore particularly shown in Fig. 2 of the drawings with the hook '20 extending freely within the slot 16 defined by the ears 15.

Thu tongue it is adapted to he freely r reivod within the slot 21. as shown in Fig. 2 of they drawings and is further adapted to he urged to a position to entirely Fill the space hctwi'zvn the upper idge of the re rviver hook 126 and the upper end wall of flu: said lot {or r tllllllf. holding the llitlfl! hook in depressed inopvrative position, whilo the cars l are adaptwl to ronlorin to tilt contour of the ti-m 1S to engage therewith upon ozu'h HlilQ of tin hook. Ai tor tho shackle has liven thus engaged with the telephone, the body portion 10 of the lock is moved ipt operative migagnuucnt. with the arms '12 of the shackle to assume the position shown in Figs. 1 and 2 of tho drawings and thus porinanently connect the lock with the tvliipliouv pending its authorllctl removal.

It will now he notvd that the body p r-- tion 10 of tho l( -l-I when tho derive is op oratively winner-ted to the tuh phoue, is adapted to vi'ifiporato with the atom 18 thereof lo preirnt any latt-ral shitting ol tho loci; upon the tilophouo surh as would permit the tongue ill to ho displarod from the slot, :21. (oneruu ntly. it will in usr. he normsarj, to iii 3, ri-lraiurtho. shackle ii. to Qthuft the tlifil iitH'ltlHl'iii the tongue. lfiuthrrmorQ. it will ho ohsr-rrod that when tho loz'k is applirihthv hawk-d tum ll of the tongue 14 is arrangrd 2o roufi-ont, tho upper edge of the receirr-r hook 20 with the rereivar hook normaliy i-n ragring the said tonguo immediately adjai-ont the inner end the reof. ,\r .:ordingly. upward prossuro or form: oxertod upon ilie hook ill tending to mow it to operative position within the slot El and com-nouontly (lose an (*loctrioal rirruit through the telephone will cause tho said hook to so engage lliv tongue 14- of tho shacklo, that thrsaid tongue will tour} to pivot at its inner exlroinity upon the ho k to :lhzllllfl. a position with the. howled taro 1 tlmroof seating llatly agaimt tho uppor edge of the. hook. Such pivotal movement f the. tongue ll will, of oux- 0, tend to urgo tho hody portion 10 of the lock upwardly and will. at the same time. tend to urge thov -ars 15 to engage at their outer (-xtroniitios with the stem 18 of tho telephone. The hotly portion ll) of the l()(l will thou mally gravitato to roturn tho tongue i4 to its normal position as uhown in Fig. .5 ll tho drawings: hut this action willlwrounteracted hy tho engagement of tho tongues 15 with the SlKlZl of the telephone. It will thrrcforo he grim that surh upward prvsmro upon the I'QCtlYil hook :20 ran only art to vauwe tho bhacklr and look to pivot or fol} rruni upon the outer i?l\'l,lt?lilitlt5 of the oars 15 whii-h movement will in turn, tend to urge the tongue 1% inwardly withintlui slot .11 and consequently wedge or more securely hind thorein to hold the rr-i-eiver arm '30 (lQPl'tSSell.

From the procoding description, it will he ohsorved that I thus provide a very siniplr and etiil-iunt confitrurtiou for tho purpose F'Qt forth adapted to pro'vrnt the unauthorized nae ot' a trlephoznand which may he employed in ronnortion with any telephone of ronrrnti nai type without the nvcossity of structural rhango th s-rein. lining to tho presonrr of tho vars if) upon the sharklr. tampi-ring with tho shackle to elim-t the un authorized dispiarrniont of tho tongucli from within thv slot 21 will he prrvonted while. wln'n tlurerr-ivoi' 22 is removed from its hook. tho spring tension upon tho hook urging it into (!.I;1 {Lfll(llt with the tongue 14- will normally to d to urge. the tongue into mori- H-l'lil't lax-king rrigzrlen'ient with t it' h lopli-una Haring; thu di-wrihi-d my invcntioinwhat i ltllli! and dvrire to aorurc h Letters Patont is? v i. .i lork for h-loohonvs inrluoiug a shacklr. a tongue rarricd hy the shankle and provided with a hu'voh il fin-o, and depend; ing: oara rarrind hy 'llik, aharklc and adapted to roiipr-i'aiiwith the longor. the SliilChlG Ming: adaptrd i oinhravaiho stun ol" a taleph-za with tho said tongue engaging within tho roroiuu hook P-lUi. fornuul in the Said shun upon ur with: f said hook and w h the said oars adapted to engage tho stiun upon ono Sill! oi said tougjuo, the licvclcd law of tho tongue hoing arranged to roin front tho up er odii'o of tho hook to normally ongagv at its two oxtrt-niity thormvith. and a lork arranttwl lo i-ooprrate with tho Shuz'klP.

2. The romhination with a telephone having a stoni proridrd with a slot, and a re- ('(lYtl' hook projvrling iri-oly through said slot. of a shat-kin ouihraoingz tho stem and. providml with a look (room-rating therewith. a tontz'uo rarrioc-i hy the sliaoklo and arrarrgvd to engago in said slotwith tho hody portion oi the look hody adapted to coopi-rato with the strzn to prevent the longitudinal displarolnent of the tongue from the f lul. tho said tonguo living! formed with an iunor hovolod fat-v auraugi-d to ronfront the upp r odgv of said Look with the rev extroniity of said tongur normally ongaging tlnhook. and spared oars depending later ally from tho sharklo and adaptrd t vngago tho t -|n upon ono l(l( of Said tonluo, the said vars dri ining an intornn-diatr slot froolv rw-i-irinu tho hook.

3). A lm-k for telephones including a shacklv, a tnnguv carried by the shackltx and a lni-k laid) arranged to itm'ipurato with tho shavklm thn Sllalhlt lining: adapted to vn| lmu'v the HU'IH (if a tch-phonv with said tongue extending within the HltlYtl' hook slot formed in the said SIM]! tn cngagv at its trot (*Xtl'tllllt) with thv hunk and with thv luvl; lmdy fur hnlding the tongue against lung'itiuliual nutward shitting movement within thv said alot and nnrniall gravitatinfl tu t'uli-runi the innvr t'Xtltllllt) (if the said tungnv upon tho IW'QlYtl hook.

l. A lnvk fur tvlvphnnvs llltllltllllg a Sllill'klt. a tnng'uv varl'iod li tho shacklv. an var depending from tho fillilt'hlt, and adapted tn i-niilwrate with thv tongue. and a lnvk hotly arranged to voiipvratv with the shai-ltlv, thv Hlltktlilt living: adapted to uniln'aw thistein uf a tvlv ihnnv with said tnngiu- 0xti-uilingz within the rvvviwr hunk slut turmoil in th. stem to vngagv at its fl'tt (Xtl'tll]lt with the hunk with the $aid var ahuttin; the stein lHlHW the tmigg'uv and with one vdgt: (if

the lutli hull engaging tln qvni l'ni' lnihliug tho tungln' against outward hhii'tin g inure-- niont within the said slut and nnrinall x gravitating to fulvruin thttnnguu at itS in- 110! 0nd upnn thv linuh.

.3. A lni-lt' for tvlophnnus lllvll tlllrfl a Sllill'hlt. a tunguu (zll'l'ltll thcrvh c. and a llll'h' lmd arrangvd tn i-niipt-rati with tlnshaililv and ha ring its (d541- nl'i-nntin; thv Qlhfllili i-ut awa thv SlltH'klt litlllgi ailaptvtl tn uni lirai-i' tho tvni 01' a tolophunc with said tnngutvxtvnding: within thv rm-ciwr hnnli slot formed in the said tvni tn vngam at its t'i'vv t'Xtl'tlllll with thv hunk and with thv i'ut awa ini'tinn nl' th lmh lHni Y littin around thv stoin fur hnliling tlwtnnguv against nutward shitting ninwnwut within thv said slut with thv lt)t'l\' hull nummrtvd to extend laterally l'i'nin tho ltlll and lil)i niall gravitatiug tn l'ulvi'uni thv tnn iuv at it innvr tXllt]llll upnn tlnliuuli, 

